WD Elements cannot be found on "This PC"

Hi.
Just this morning I tried plugging in my WD Elements Portable to transfer a few videos to there, But when I plugged it in, I didn’t show up in “This PC”. When I opened the Disk Management Application, It said I need to “Initialize” the drive, But It didn’t let me do so as it gave me an Error message. It’s very important. It has well over 200 GBs of Videos and documents.
I tried a Different computer, Different USB ports, Different cables… At first the other computer recognized it, But second time I plugged it in about 5 minutes later, It didn’t recognize it too…

PLEASE, I NEED HELP QUICK. I DON’T WANT TO ERASE IT…

Don’t try to Initialize it then … because that will ERASE IT

Most probably the partition and/or the MBR is corrupted.

I would advise contacting a Data Recovery Center (link below) … and to avoid this costly situation again, keep a backup of your “Very Important” videos and documents. (i keep 2 backups of all my important data in case situtations like this happen.)